The bibcock that enterprise informatization builds and core -- CAPP technology

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  • source:JUSTYN CNC Machining
20 centuries since 80 time, global IT develops at full speed, especially the occurrence of Internet and gain ground, make each domains that IT is able to permeate socioeconomy quickly, informatization makes the world trend that is not move with the person's volition. We the development according to global electron business affairs, the foundation that joins Chinese electron business affairs and current situation analysis think, enterprise informatization regards an electron as the foundation of business affairs, the emphasis that shows level to be in China is informatization of implementation business management, long-term goal is active and reliable ground begins electronic business affairs, corresponding countermeasure is " the challenge that answers electronic business affairs with enterprise informatization " . One, the problem that informatization of our country enterprise builds and its reason: Construction of informatization of our country enterprise also is facing many problems, review begin to introduce system of MRPII ／ ERP since 1991, as a result the business of 50 ％ above failed, only the enterprise of 15 ％ is in estimated the implementation inside time and charge is compositive, the company that still has 35 ％ is used in patchy move; Send the CIMS that exhibit after that, also fail to win extensive promotion; Began to introduce 1995, discuss and implement PDM system, still do not take the case that gives a success up to now, make enterprise and software vendor all feel painful; The application of technology of CAD, CAPP also experienced the course that pursues automation of three peace keeping one-sidedly, did not obtain all the time before 1995 large area applies and enter practical change level, song Jian of director of committee of science and technology put forward 1995 2000 the enterprise of 95 ％ " throw drawing board " , those who be CAD technology popularize point to clear direction, make broad medium and small businesses and design personnel savor the benefit of CAD technology. Although the product that vendor of a few software rolls out can satisfy design, technologist " throw drawing board " , " put a pen " requirement, but one-sided pursuit " the tool is changed " , the angle that did not build from enterprise informatization considers product development, the applied gain that causes technology of CAD of a lot of business early days, CAPP be hard to compositive and use, become the obstacle that enterprise informatization builds actually! Investigate its reason is go up to be advanced downward oneself in the course that builds in informatization as a result of the enterprise, automation of beyond the mark pursuit and system are compositive, and the fundamental data of the enterprise fails to come true compositive change, make informatization construction is become " a castle in the air " , at the same time the actual condition of enterprise of ignored our country, pattern of industry of abroad of copy word for word, in the informatization construction process of the enterprise, pattern of as existing as the enterprise management is intense conflict. Accordingly we think enterprise informatization is built should by introversion outside, fall to undertake up oneself, in mature information compositive premise falls, implement technology of unit of CAD ／ CAPP correctly above all, the craft section that produces the data that a large number of directive production manage, documentation especially, its work way must take the lead in coming true " the electron is changed " . 2, the problem that when the enterprise chooses CAPP, should pay attention to: The unit technology that builds as enterprise informatization -- CAPP also already more and more get the attention of our country manufacturing industry, is there a lot of planting in the market now how should CAPP enterprise choose again? Current, domestic computer assists the application that craft designs to still be in promotion phase. Because the computer is in an enterprise to apply mediumly, the application in producing a project especially just still starts, a lot of enterprises are blank still, because this enterprise should note the following problems when type selecting: · enterprise needs to install the CAPP system with friendly interface of handy, man-machine. The operation is complex, data preparation and system debug time to grow, the CAPP system that needs a large number of grooming to just can be used lets an user very hard accept. · is practical strong CAPP system. The operation uses the craft that should accord with craft to design staff to design a habit, what made can rapid control. Such CAPP systems just are able to popularize in the enterprise. · opens the CAPP with good sex. Because create environmental diversification and complexity, good CAPP system ought to satisfy: It is OK to provide an user construction agrees with the CAPP platform system that this enterprise makes an environment; When the solution of the experience with practical user and system is abhorrent, systematic inference and decision-making method are revised can expediently by the user. · is flexible. System of enterprise gay CAPP should be had better flexible, can get used to the product with different company and manufacturing demand, contented and can different management goal and production plan program. · can satisfy compositive requirement. Compositive the development trend that changing development is modern manufacturing industry, also be the development trend of CAPP system, the rock-bottom data structure that because this applies CAPP at present,should notice CAPP system whether contented and compositive requirement. 3, our country the delegate that since 80 time CAPP develops course and current situation and system of outstanding now CAPP generation product: 1982 - during 1995, be based on the CAPP system that intelligence is changed and expert system thought develops. Emphasize the automation that craft designs one-sidedly, oversight person is in craft is decision-making medium action. The 2nd acting product: 1995 - at present, be based on low end database (FoxPro) the CAPP system of development. The data that place of system of this kind of CAPP processes and generated data must be based on a database, but because of development technical place is restricted, accomplish very hard " what see gain " , not be means of seesaw pattern design. Of craft card generating is will finish by the program or be generate in CAD, of the system practical very poor. The 3rd acting product: 1996 - at present, be based on the CAPP system of AutoCAD or development of own figure platform. Used CAD technology to develop system of a few CAPP, it solved practical problem, but ignored the basiccest problem however: Craft is an object with relevant data, is not an object with card. This kind of CAPP is based on development of technology of file system CAD, especially software of own CAD platform, file format was used nonstandard define a format oneself, the exchange of information is put in serious problem. The 4th acting product: 1998 - at present, be based on a database completely, use seesaw pattern to design the means, management that pays attention to data and compositive integrated type platform kind CAPP system. This kind of system was centered the 2nd, the advantage of the 29th acting system, it is scholar of domestic and international CAPP's accepted optimal development mode, the intelligence that satisfied specific company, specific major at the same time changes the need of 2 development of expert system. CNC Milling CNC Machining